auto load item detail when mouseover title
当前为
// ==UserScript==
// @name v2ex+
// @namespace http://tampermonkey.net/
// @version 0.16
// @description auto load item detail when mouseover title
// @author Silvio27
// @match https://www.v2ex.com/*
// @match https://fast.v2ex.com/*
// @icon https://www.google.com/s2/favicons?sz=64&domain=v2ex.com
// @license GPLv3
// @grant GM_addStyle
// ==/UserScript==
(function() {
'use strict';
console.log("script")
// show_topic, show_fav_btn, show_reply, defaultHeight
topics_node_page(true, true, true, 600)
member_replies_page(true, false, false, 0)
function topics_node_page(show_topic, show_fav_btn, show_reply, defaultHeight) {
let topics
if (document.getElementById("TopicsNode")) {
// alert("TopicsNode")
topics = document.querySelectorAll("#TopicsNode>.cell")
} else {
// alert("No TopicsNode")
topics = document.querySelectorAll(".cell.item")
}
topics.forEach((element, index) => {
let new_item = create_item("td", element.querySelector("tr"), element.querySelector("tr").lastElementChild,
'▼', "triangle", 30)
// 修改cursor_style
cursor_style(new_item)
new_item.onclick = function () {
let url = element.querySelector(".topic-link").href
let id = url.replace("https://www.v2ex.com/t/", "").split("#")[0] + "_topic"
load_item_change_btn(element, id, url, new_item, show_topic, show_fav_btn, show_reply, defaultHeight)
}
})
}
function member_replies_page(show_topic, show_fav_btn, show_reply, defaultHeight) {
let dock_areas = document.querySelectorAll(".dock_area")
dock_areas.forEach((element, index) => {
// 创建新的列
let new_item = create_item("span", element.querySelector("td"), "",
'▼', "triangle", 30)
cursor_style(new_item)
new_item.onclick = function () {
let url = element.querySelectorAll("a")[2].href
let id = url.replace("https://www.v2ex.com/t/", "").split("#")[0] + "_reply"
load_item_change_btn(element, id, url, new_item, show_topic, show_fav_btn, show_reply, defaultHeight)
}
})
}
function load_item_change_btn(element, id, url, btn, show_topic, show_fav_btn, show_reply, defaultHeight) {
let content = document.getElementById(id)
if (content) {
if (content.style.display === "none") {
content.style.display = "block"
btn.innerText = "▲"
} else {
content.style.display = "none"
btn.innerText = "▼"
}
} else {
btn.innerText = "加载中"
document.body.style.cursor = "wait";
btn.className = "content-loaded"
load_item_topic_favBtn_reply(element, url, id, btn, show_topic, show_fav_btn, show_reply, defaultHeight)
}
}
function load_item_topic_favBtn_reply(target_ele, url, id, load_btn, show_topic, show_fav_btn, show_reply, defaultHeight) {
// 创建一个临时容器元素来容纳加载的内容
const tempContainer = document.createElement('div');
// 使用Ajax异步加载下一页的内容
const xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.onload = function () {
if (xhr.status === 200) {
tempContainer.innerHTML = xhr.responseText
// 创建返回的内容元素
let contents = document.createElement('div')
contents.id = id
contents.className = "woDeStyle"
// 绑定Escape折叠contents
mouse_escape(contents)
if (show_topic) {
// 获得 topic_content
let topic_contents = tempContainer.querySelectorAll(".topic_content")
contents.innerHTML += '<div class="topic-content-box"></div>'
topic_contents.forEach((e) => {
// 即 .topic-content-box
contents.firstChild.appendChild(e.parentElement)
})
}
if (show_fav_btn) {
// 添加topic_buttons
let favorite_btn = tempContainer.querySelector(".topic_buttons")
// 点击收藏，页面在新标签中打开
let fav_ele = favorite_btn.querySelector("a")
fav_ele.onclick = function (e) {
// 阻止原始a标签打开新页面
e.preventDefault()
// 后台发送xhr
mark_favourite(this)
}
contents.firstElementChild.appendChild(favorite_btn)
}
if (show_reply) {
// todo 展示不清楚为什么box会出现不同的情况，待研究
// 获得 reply_content
let reply_box = tempContainer.querySelectorAll(".box")
reply_box.forEach((e, index) => {
if (e.innerText.includes("条回复")) {
contents.appendChild(e)
}
})
// 去除reply_content中头像及空格
contents.querySelectorAll("tbody>tr").forEach((e) => {
e.removeChild(e.firstElementChild)
e.removeChild(e.firstElementChild)
})
// 添加一个折叠按钮 todo 是否可以直接把tr中添加的拿来用？
let hideBtn = document.createElement("div")
hideBtn.innerText = "▲"
hideBtn.className = "content-loaded"
hideBtn.style.textAlign = "right"
hideBtn.onclick = (() => {
// 隐藏主题详情
contents.style.display = "none"
// 切换主题展开为关闭
contents.parentElement.querySelector(".content-loaded").innerText = "▼"
})
cursor_style(hideBtn)
contents.appendChild(hideBtn)
}
// content添加到target_ele
target_ele.appendChild(contents)
// 设置默认高度
set_content_default_height(contents, defaultHeight)
// 修改折叠按钮为展开，切换样式
set_btn_up(load_btn)
}
};
xhr.send();
}
function cursor_style(element) {
element.addEventListener("mouseover", function () {
document.body.style.cursor = "pointer";
});
element.addEventListener("mouseout", function () {
document.body.style.cursor = "auto";
});
}
function create_item(tagName, element, element_place, inner_text, class_name, width) {
let item = document.createElement(tagName)
item.setAttribute("width", width)
item.setAttribute("align", "center")
item.setAttribute("class", class_name)
item.innerText = inner_text
if (element_place) {
element.insertBefore(item, element_place)
} else {
element.appendChild(item)
}
return item
}
function mark_favourite(ele) {
let url = ele.href
const xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.onload = function () {
if (xhr.status === 200) {
if (ele.innerText !== "取消收藏") {
ele.innerText = "取消收藏"
ele.style.backgroundColor = "gold"
ele.href = url.replace("fav", "unfav")
} else {
// todo 取消收藏，好像有页面重定向的问题
console("目前需要手动处理")
// ele.innerText = "加入收藏"
// ele.style.backgroundColor = ""
// ele.href = url.replace("unfav", "fav")
}
}
}
xhr.send();
}
function mouse_escape(element) {
element.addEventListener('mouseover', function () {
document.addEventListener('keydown', escKeyPressed);
});
element.addEventListener('mouseout', function () {
document.removeEventListener('keydown', escKeyPressed);
});
function escKeyPressed(event) {
if (event.key === 'Escape') {
element.style.display = 'none';
// todo 这个位置应该需要结构
element.parentElement.querySelector(".content-loaded").innerText = "▼"
}
}
}
function set_content_default_height(element, defaultHeight) {
// 如果没有设置，默认高度600px；如果输入0，完整显示
if (defaultHeight === 0) {
defaultHeight = element.offsetHeight
} else if (!defaultHeight) {
defaultHeight = 600
}
if (element.offsetHeight > defaultHeight) {
element.style.height = defaultHeight + "px"
} else {
element.style.height = element.offsetHeight
}
}
function set_btn_up(element) {
element.innerText = "▲"
element.className = "content-loaded"
document.body.style.cursor = "auto";
}
let css = `
.woDeStyle {
/*height: 600px;*/
padding: 10px;
margin: 10px auto;
border: 1px solid gray;
border-radius: 10px;
overflow: scroll;
}
.topic-content-box {
border-bottom: 2px dashed gray;
padding-bottom: 10px;
margin-bottom: 10px;
}
.triangle {
color: gray;
padding-left:10px;
}
.content-loaded {
color: greenyellow;
padding-left:10px;
}
#Wrapper {
background-color: var(--box-background-color) !important;
background-image: none !important;
}
`
GM_addStyle(css)
})();
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